Daylight Savings Time Moves Appointment times

After discovering a timing problem on my network related
to Kerberos I resynchronized my server with an external
time souce. I also discovered my workstations were not set
to adjust for daylight savings time. After selecting the
option to adjust clocks for daylight savings all of my
appointment on the calendar moved an hour forward. I am
running Windows Small Buisness Server 2003 with Exchange
Server as well. Any ideas on how to get my appointments
back in place?

Thanks,
Aaron